Flat earth proof. 2 rockets hit dome? True or False??

This video appears to show 2 amateur rockets hitting an invisible dome at an altitude of 75 miles high, both rockets are flying along at great speed and then without warning stop dead in their tracks and a loud thud sound is clearly heard?

If this is true then it would conclusivly confirm the flat earth theory or at the very least give rise to a lot of questions about what the government is hiding from us and why?

what are your thoughts, please leave a comment and discuss other possible theories or explanations.